Figure 5: The comparison of the induced bystander foci in recipient MRC-5 by X-ray and carbon ion beam irradiated cultures. Graph showing significant higher γH2AXfoci induced by X-ray irradiated monolayer cells than those of irradiated 3D cultures. Whereas the induced bystander γH2AXfoci by carbon beam irradiated 2D culture were comparative to those of irradiated 3D cultures. *: P<0.05.